Run bash script on every git commit

Question

Out of curiosity, I would like to benchmark a project I have been working on for a while, to see how it's performance at various tasks has varied over time. This project is stored in a git repository.

Fundamentally, it seems like the correct method is

for r in $(git log --pretty="format:%H"); do
    git checkout $r
    echo "$r\t$(./benchmark.sh)" >> results.txt
done

This seems like a hack however (using porcelain for a plumbing task, for starters), and so I am wondering if there is a "preferred" method for this, such as (I wish)

git black_magic-run-on-all ./benchmark.sh > results.txt

It seems like a common enough task, which is why I expect something to exist for this.

See git hooks (man githooks) -> kernel.org/pub/software/scm/git/docs/githooks.html - Using these you can run scripts at various places in the SCM logic — user1898811
– user1898811, Commented Apr 25, 2013 at 21:20
Quite interesting, but not what I'm looking for in this case. This is a "I have two years of history, and I want to make a graph out of it" issue. I don't have a need to do this synchronously. — zebediah49
– zebediah49, Commented Apr 25, 2013 at 21:21
git bisect run might be something similar, but meant for another situation. — michas
– michas, Commented Apr 25, 2013 at 21:24
Ohhh, apologies @zebediah49 maybe you'll find a use for git hooks some other day ;-) — user1898811
– user1898811, Commented Apr 25, 2013 at 21:25
@Ron-Dahlgren Oh, totally agree.. even the obvious "make sure it compiles without error" test is a wonderful option. — zebediah49
– zebediah49, Commented Apr 25, 2013 at 21:26

Zombo · Accepted Answer · 2013-04-25 21:24:31Z

3

Well for starters you can use rev-list

git rev-list HEAD

answered Apr 25, 2013 at 21:24

Zombo

1

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